Mix all dry ingredients in a cup and stir to combine.
Add 2 tbsp of the milk to the dry ingredients and stir to make a paste.
Add the rest of the milk, and stir well.
Microwave for 20 seconds, then stir.
Repeat until cocoa reaches desired temperature.
OR pour into a saucepan and heat.
Serve with whipped cream or marshmallows - or both.